Home / 126,126.12-189,312.30-104,163.24

Finding the Fourth Proportional to 126,126.12, 189,312.30 and 104,163.24

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Solution

The fourth proportional to 126,126.12, 189,312.30 and 104,163.24 is: 156,346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,126.12 : 189,312.30 = 104,163.24 : x
  2. Step 2: Convert to fraction form
    126,126.12/189,312.30 = 104,163.24/x
  3. Step 3: Cross multiply
    126,126.12x = 189,312.30 × 104,163.24
  4. Step 4: Simplify right side
    126,126.12x = 19,719,382,539.85
  5. Step 5: Solve for x
    x = 19,719,382,539.85/126,126.12
  6. Step 6: Final answer
    x = 156,346.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.